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zavuch27 [327]
3 years ago
11

I could use some help!! (worth 25 points)​

Mathematics
2 answers:
lawyer [7]3 years ago
8 0

Answer:

Step-by-step explanation:

100m

Verizon [17]3 years ago
6 0

Answer:

i think its 116.6m but im not sure

plz mark me as brainliest if i was right :)

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Solve the following system.<br> x2 + y2 = 20<br> y= x2
Nataly [62]

Answer:

<h3>x=2±√6. Explanation: Since we are given y in terms of x, we can substitute directly into the other equation...</h3>

3 0
3 years ago
Anybody Know This. ?
Varvara68 [4.7K]
<h3>Answer: DE (second choice)</h3>

Segment DE, which is the same as segment ED, goes through the center point O. All diameters must go through the center of a circle. Also, the endpoints of any diameter are on the circle's edge.

Put another way, a diameter is a chord that goes through the center. A chord is any segment with its endpoints on the circle. For instance, segment BC is a chord but it is not a diameter since it doesn't go through the center.

8 0
3 years ago
Freeeeeeeeeee points I hope your get some
Ber [7]

Answer: :)

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3 0
3 years ago
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The length, breadth and height of a rectangle block are 10 cm , 15 cm and 25 cm. The LENGTH : BREADTH : HEIGHT ratio of the bloc
-Dominant- [34]

\LARGE{ \underline{ \tt{Required \: answer:}}}

We have to find the simplest ratio between length, breadth and the height.

Here,

  • Length = 10 cm
  • Breadth = 15 cm
  • Height = 25 cm

Note:

  • Always check the units first.
  • Then find the HCF of the numbers to simplify them into the simplest ratio.

So,

HCF of 10, 15 and 25 is 5. Cancelling with respect to 5.

Then, the ratio will be 2:3:5 (Option A)

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3 0
3 years ago
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A news agency publishes results of a recent poll. It reports that candidate A leads candidate B by 10% because 45% of the poll p
natali 33 [55]

We need to use the formula to find Margin of Error but through the sample proportion, that is

E=z*\sqrt{\frac{\hat{p}(1-\hat{p})}{n}}

We will use a 95% confidence interval, that is a z value of 1.96 (Search in a Normal distribution table)

A) For A our \hat{p} (proportion) is equal to 0.45. So applying the formula,

E=1.96*\sqrt{\frac{0.45(1-0.45)}{900}}

E=3.25\%

B) We make the same of point A, but change our proportion to 0.35

E=1.96*\sqrt{\frac{0.35(1-0.35)}{900}}

E=3.116\%

c) We need to calculate the SE through proportion for 0.1, that is

SE = \sqrt{(\frac{\hat{p_1}(1-\hat{p_1})}{n})+(\frac{\hat{p_2}(1-\hat{p_2})}{n})}

Then our Error is given by,

E=z*SE

E=1.96*\sqrt(0.45*\frac{0.55}{900}+0.35\frac{0.65}{900}

E=0.045

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3 years ago
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